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Finding the Fourth Proportional to 22,246, 30,699.48 and 12,310

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Solution

The fourth proportional to 22,246, 30,699.48 and 12,310 is: 16,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246 : 30,699.48 = 12,310 : x
  2. Step 2: Convert to fraction form
    22,246/30,699.48 = 12,310/x
  3. Step 3: Cross multiply
    22,246x = 30,699.48 × 12,310
  4. Step 4: Simplify right side
    22,246x = 377,910,598.80
  5. Step 5: Solve for x
    x = 377,910,598.80/22,246
  6. Step 6: Final answer
    x = 16,987.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.